| 摘要 |
PURPOSE: A prefabricated lattice girder is provided to facilitate the assembly of a steel bar and a connection bar, to reduce the number of workers, and to significantly reduce production costs. CONSTITUTION: A prefabricated lattice girder includes one or more lower steel bars (12) and upper steel bars (12a) to be joined to a support (20). The upper and lower steel bars are inserted into first and second fixing parts (21,25) formed at the outer corners of the support and are fixed using a fixing unit (30). A prefabricated lattice girder is assembled using a fastener (38) by inserting a connection bar (14) with a through-hole (15) into between the flange parts (26) of first and second supports (20a,20b) which are separated into both sides. |
